Across
- 3. disease causing agent
- 4. destroys bacteria
- 5. outer layer
- 9. fight infection
- 10. connects, exchanges
- 12. weak or dead strand
- 13. away from the heart
- 17. cause scabs
- 18. spot pathogen
- 19. towards the heart
Down
- 1. redness, swelling, and heat
- 2. destroys virus
- 6. carries oxygen
- 7. cools body
- 8. destroy pathogen
- 11. skin, hair, nails
- 14. "clothing" of the pathogen
- 15. moisten skin and hair
- 16. inner layer